CN101248737B - Method for producing organic selenium - Google Patents
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- CN101248737B CN101248737B CN2008100177595A CN200810017759A CN101248737B CN 101248737 B CN101248737 B CN 101248737B CN 2008100177595 A CN2008100177595 A CN 2008100177595A CN 200810017759 A CN200810017759 A CN 200810017759A CN 101248737 B CN101248737 B CN 101248737B
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- 239000011669 selenium Substances 0.000 title claims abstract description 125
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 229910052711 selenium Inorganic materials 0.000 title claims abstract description 124
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 229940091258 selenium supplement Drugs 0.000 claims abstract description 123
- 235000015921 sodium selenite Nutrition 0.000 claims abstract description 32
- BVTBRVFYZUCAKH-UHFFFAOYSA-L disodium selenite Chemical compound [Na+].[Na+].[O-][Se]([O-])=O BVTBRVFYZUCAKH-UHFFFAOYSA-L 0.000 claims abstract description 26
- 229960001471 sodium selenite Drugs 0.000 claims abstract description 26
- 239000011781 sodium selenite Substances 0.000 claims abstract description 26
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 31
- 235000010755 mineral Nutrition 0.000 claims description 31
- 239000011707 mineral Substances 0.000 claims description 31
- 150000003839 salts Chemical class 0.000 claims description 31
- 241000220259 Raphanus Species 0.000 claims description 26
- 235000006140 Raphanus sativus var sativus Nutrition 0.000 claims description 26
- 239000007921 spray Substances 0.000 claims description 17
- 241000196324 Embryophyta Species 0.000 claims description 16
- 241000219977 Vigna Species 0.000 claims description 9
- 235000010726 Vigna sinensis Nutrition 0.000 claims description 9
- 230000035784 germination Effects 0.000 claims description 9
- 235000013311 vegetables Nutrition 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 210000003608 fece Anatomy 0.000 claims description 7
- 230000012010 growth Effects 0.000 claims description 7
- 239000010871 livestock manure Substances 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 6
- -1 salt sodium selenites Chemical class 0.000 claims description 6
- 244000037666 field crops Species 0.000 claims description 5
- 235000013305 food Nutrition 0.000 claims description 5
- 235000013361 beverage Nutrition 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 150000003342 selenium Chemical class 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 235000013409 condiments Nutrition 0.000 claims description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 5
- 230000003000 nontoxic effect Effects 0.000 abstract description 5
- 230000008635 plant growth Effects 0.000 abstract description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 1
- 229910017053 inorganic salt Inorganic materials 0.000 abstract 1
- 235000011649 selenium Nutrition 0.000 description 99
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 206010039921 Selenium deficiency Diseases 0.000 description 5
- 240000004922 Vigna radiata Species 0.000 description 5
- 235000010721 Vigna radiata var radiata Nutrition 0.000 description 5
- 235000011469 Vigna radiata var sublobata Nutrition 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 244000046052 Phaseolus vulgaris Species 0.000 description 4
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 3
- VNYMQKINNCZIQN-UHFFFAOYSA-M [O-][Se](O)=O.[Na+].[SeH2] Chemical compound [O-][Se](O)=O.[Na+].[SeH2] VNYMQKINNCZIQN-UHFFFAOYSA-M 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000011630 iodine Substances 0.000 description 3
- 229910052740 iodine Inorganic materials 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 241000282412 Homo Species 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 125000003748 selenium group Chemical group *[Se]* 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 240000008067 Cucumis sativus Species 0.000 description 1
- 235000010799 Cucumis sativus var sativus Nutrition 0.000 description 1
- 208000019926 Keshan disease Diseases 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical class [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000036983 biotransformation Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
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- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 210000003743 erythrocyte Anatomy 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
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- 239000003337 fertilizer Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
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- 230000008676 import Effects 0.000 description 1
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- 230000002503 metabolic effect Effects 0.000 description 1
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- 239000002105 nanoparticle Substances 0.000 description 1
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- 201000008482 osteoarthritis Diseases 0.000 description 1
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- Cultivation Of Plants (AREA)
Abstract
The invention relates to a production method for organic selenium, in particular to a production method of using the plant growth for conversing inorganic selenium to organic selenium, which is characterized in that plant seeds are soaked by an inorganic salt sodium selenite solution and to germinate and be planted, the plant growth converses the inorganic selenium to the organic selenium, and then organic selenium product can be acquired after treatment. The production method is simple in production process flow, efficient, nontoxic, edible, easy to absorb and convenient in use at a price as low as the iodized salt, thereby facilitating the populariztion.
Description
Technical field
The present invention relates to a kind of production method of organic selenium, particularly a kind of growth that utilizes plant is converted into inorganic selenium the production method of organic selenium.
Background technology
Scientific achievement confirms that again and again selenium is the requisite trace element of human body metabolism, and for this reason, UNESCO announces that selenium is one of 15 kinds of elements of needed by human; But because that the selenium element distributes on earth is very inhomogeneous, this just causes the poor selenium of soil of more than 40 countries and regions to lack selenium.Thereby, people and animals have eaten for a long time and have drunk the grain vegetables fruit of growing in these soil and agricultural byproducts or the like, just must cause " the regional characters selenium deficiency disease " of the difficult anti-refractory of kind more than 40 (latest report has reached kind more than 70), as Keshan disease, Kaschin-Beck disease, cardiovascular and cerebrovascular disease, diabetes, aging and cancer or the like, cause the health of nearly 2,000,000,000 populations to be endangered, wherein, China 72% territory, nearly 700,000,000 people are just arranged.For this reason, China's exploitation selenium-enriched food medicine is imperative; The World Health Organization clearly proposes the whole mankind for a long time must mend selenium, to prevent and treat present cureless disease.Scientific and technological achievement also confirms again and again, why the selenium element has preventive and therapeutic effect to kind more than 70 " regional characters selenium deficiency disease ", be because selenium is powerful antioxidant, aspect regulating the human body redox equilibrium, eliminating superoxides and free radical, have important role; Confirm that also mineral salt have toxic and side effect when preventing and curing diseases, when particularly using inorganic selenium, double cautious., up to the present, prevent and treat kind more than 70 " regional characters selenium deficiency disease ", no matter be medicine or food, the overwhelming majority prepares with the mineral salt sodium selenite, and costs an arm and a leg, and also has the safety problem of the health that concerns.And now China almost each provinces and regions sooner or later all in the successful experience of copying " salt compounded of iodine ", it is edible to produce inorganic " selenium salt " supply masses with the mineral salt sodium selenites, and the example of bad reaction had taken place.Brainstrust points out, from the biological property aspect of alimentology and selenium, mend selenium and generally adopt two kinds of inorganic selenium and organic selenium, but there is significant difference in both at aspects such as biologically active, toxicity and biological effectivenesses, and metabolic path is also different.Inorganic selenium has bigger toxicity, and is difficult for being absorbed, and is not suitable for humans and animals and uses.Governments of developed country such as u.s.a. and japan prohibite inorganic seleniums such as using sodium selenite in all animal feeds already, and organic selenium is the selenium source that unique permission is used.Organic selenium is that inorganic selenium gets through biotransformation, has the advantages that toxicity is little, bioavilability is high, is the human best selenium source that uses.Existing scientific experiment proves: the effective sex ratio inorganic selenium of the activity of organic selenium exceeds about 7 times, and organic selenium is also much longer demurrage in body.In estimating organism selenium retain, during deposition conditions, Se content is to mend 29 times of selenium with inorganic selenium in its bone, the muscle.And the level of blood plasma and red blood cell selenium is also obviously expressed the advantage that organic selenium is mended selenium.
The method that inorganic selenium is converted into organic selenium is many, such as, the patent No. is the patent " a kind of preparation method's technology of preparing of active and elementary selenium " of ZL97107038.5, since its complex process, the expensive thereby very difficult penetration and promotion of the high price of cost.It is the selenium product that takes the lead in adopting nanometer technology production in the world, and zeroth order selenium is prepared into nano particle, is referred to as nanometer selenium (nano-se), and has the leading level in the world.And for example, the patent No. is 200710028176.8 " using plant to prepare the production method of biologic state selenium ", because it is to utilize selenium-rich zoology whole-element fertilizer, process by seed soaking, fertilising transforms through vegetable solid fermentation again, and the biology of cultivating a large amount is the bright product raw material of selenium too, also to pass through low temperature drying, pulverizing, just can prepare the biologic state selenium that is rich in pure natural organic selenium, as seen, technological process is comparatively complicated.
Summary of the invention
The objective of the invention is: the production method that a kind of organic selenium is provided, it can be converted into organic selenium with inorganic selenium, not only technology is simple and high effect nontoxic, edible safety, be easy to absorb, easy to use and cheap, maintain an equal level with " salt compounded of iodine ", be convenient to penetration and promotion.
Technical scheme of the present invention is: a kind of production method of organic selenium, it is characterized in that: process germination again after it uses the mineral salt sodium selenite solution to soak in the seed of plant, plantation, growth by plant is converted into organic selenium with inorganic selenium, just becomes organic selenium product through handling then.
The production stage of described organic selenium is as follows:
(1), to get Radish seed or cowpea seed 50g/ part and concentration be 80～150mg/kg mineral salt sodium selenite solutions, in 1: the 3-6 ratio was soaked 18 hours-24 hours;
(2), the Radish seed that will soak or the cowpea seed greenhouse of putting into 26 ℃～30 ℃ germinates, in the greenhouse in per 8 hours of duration of germination with the mineral salt sodium selenite solution spray of 100mg/kg 1 time, totally 9 times, used running water instead in per afterwards 8 hours to spray 1 time, still spray 9 times;
(3), with the sprigging of germinateing in the greenhouse in use sufficient base manure, and every mu contain and evenly spill in the ground after 15 gram mineral salt sodium selenites and earth repeatedly stir, according to conventional vegetable cultivation rules plantation, ripe results contain the plant of organic selenium, through handling, are organic selenium products.
The concrete production stage of described organic selenium is as follows:
(1), getting Radish seed 50g/ part and concentration is that 80～150mg/kg mineral salt sodium selenite soaks in 1: 4 ratio of solution;
(2), the Radish seed that will soak is put into 26 ℃～30 ℃ greenhouse germination, per 8 hours mineral salt sodium selenite solutions with 100mg/kg of duration of germination spray 1 time in the greenhouse, totally 9 times, use the running water spray instead 1 time in per afterwards 8 hours, still spray 9 times, and cultivate into seedling;
(3), with the seedling culture transferring in use sufficient base manure, and every mu contain and evenly spill in the ground after 15 gram mineral salt sodium selenites and earth repeatedly stir, cultivate according to the vegetables rules, gather in the crops together with organic selenium radish and organic selenium radish ornamental tassels after ripe.
The described plant that contains organic selenium mixes in proportion with salt and can be made into organic selenium salt.
The described plant that contains organic selenium can be made into organic selenium medicine, organic selenium food, organic selenium beverage, organic selenium feed, organic selenium condiment.
Characteristics of the present invention are: again through plantation, the growth by plant is converted into organic selenium with inorganic selenium its soaks the seed of plant with the mineral salt sodium selenite solution after, and its technological process of production is simple, does not need import; And do not have public hazards such as the three wastes, the locality can make, and raw material can be gathered materials on the spot, be convenient to promote, particularly poor selenium lack selenium always, less, limit, poor area all can quote.The organic selenium product high effect nontoxic, take safe, easy to use, cheap; Can be widely used in fields such as medicine, food, beverage, feed, be used to prevent and treat the regional characters selenium deficiency disease that more than 70 of harm humans health is planted difficult anti-refractory.
Embodiment
The concrete production process that inorganic selenium transforms organic selenium is:
I, utilization Radish seed grow into the process of radish, and inorganic selenium is converted into organic selenium.
Embodiment 1
(1), prepares: Radish seed 50g/ part; 100mg/kg (ppm) the solution 500ml that commercially available mineral salt sodium selenite is made into;
(2), with 1 part of Radish seed selected, that clean, drain, after the mineral salt sodium selenite solution of 100mg/kg (ppm) mixes in 1: 4 ratio, place in 28 ℃ the thermostatic chamber and soaked 24 hours;
(3), take out the greenhouse of putting into 28 ℃ after draining immediately and germinate, the inorganic selenium sodium selenite solution with 100mg/kg (ppm) sprayed 1 time in per 8 hours, sprayed altogether 9 times; Afterwards, per 8 hours with normal temperature running water flushing 1 time, still 9 times; Immediately the bud seedling is transplanted in green house or the land for growing field crops then;
(4), green house or land for growing field crops must use sufficient base manure in advance, and evenly spill in the ground after the mineral salt sodium selenites of 15 grams and earth repeatedly stirred; After planting well, cultivate radish, connect the radish ornamental tassels after the maturation to gather in the crops together, clean earth and the mineral salt sodium selenite that adheres to running water according to the vegetables rules;
(5), radish and ornamental tassels are thinly sliced in the lump, dry or dry in 60 ℃ warm air drier, moisture must not surpass 11%, pulverizes stand-by with cracker again.
(6), detect organic selenium content.
Embodiment 2
Similar substantially to embodiment 1, different is is made into the solution soaking seed 18 hours of 80mg/kg (ppm) with commercially available mineral salt sodium selenite, and in 1: 3 ratio, the temperature of germinateing in the greenhouse was 27 ℃.
Embodiment 3
Similar substantially to embodiment 1, different is is made into the solution soaking seed 24 hours of 150mg/kg (ppm) with commercially available mineral salt sodium selenite, and in 1: 6 ratio, the temperature of germinateing in the greenhouse was 30 ℃.
Effect is best with embodiment 1.
The radish contrast and experiment
1, under equal conditions, each 0.07 hectare of experimental group and control group all in sowing on June 8th, 07, is planted 3500 strain/mus, 80 days breeding times as stated above; Control group except soak seed without the mineral salt sodium selenite solution and sprinkling is grown seedlings and ground in mix the 15 gram inorganic seleniums, other are identical with experimental group.
Comparing result:
750 kilograms of experimental group results radish, organic selenium content 613.312mg/kg (ppm) after tested;
Control group results radish 980.25kg, organic selenium content 0.250mg/kg (ppm) after tested.
Radish yield height, selenium content are also high, but vegetative period is long.
II, the method for germinateing by the mung bean seed are converted into organic selenium with inorganic selenium
Mung bean seed → selected → clean → drain → 1 part mung bean seed and the mineral salt sodium selenite solution of 4 parts of 100mg/kg (ppm) mix → place soak in 28 ℃ the insulating box 24 hours → take out the insulating box that drains → put into 28 ℃ germinate → sprayed in the per 8 hours mineral salt sodium selenite solution 1 time of 100mg/kg (ppm), spray 9 times → use normal temperature running water spray instead, spray was 1 time in per 8 hours, still spraying 9 times → continuation germinates in 28 ℃ insulating box, note the combing root system, keep ventilating, treat results about bean sprouts length to 10 centimetre, with normal temperature running water flush away attached to the mineral salt sodium selenite on the sprout, dry immediately or in 60 ℃ warm air drier, dry, moisture content must not surpass 11% → pulverize check organic selenium content → quality inspection → safety check → packing → warehouse-in with cracker.
Advantage: campaign is short, and the cycle is also short, general about 10 days;
If use bean sprout growing machine production, can save for 2/3 time, and reduce labour intensity greatly,
Comparing result
Under equal natural conditions, experimental group and control group are respectively got the 1kg mung bean, and experimental group is raised bean sprouts as stated above, and control group is except the mineral salt sodium selenite solution that does not spray 100mg/kg (ppm), and other are identical with experimental group.
Results: experimental group: 2.3kg, organic selenium content 260.202mg/kg (ppm),
Control group: 2.8kg, organic selenium content: 2.079mg/kg (ppm).
III, the growth by cowpea are converted into organic selenium with inorganic selenium
Growth by cowpea is converted into the method for organic selenium with inorganic selenium, and that inorganic selenium is converted into the organic selenium method is identical with growth by radish
Cowpea absorption mineral salt sodium selenite is also higher than mung bean seed, and weak point is that campaign is long, needs built, and labour intensity is big, yields poorly.
Comparing result
Under equal natural conditions, each 1 mu of ground of experimental group and control group, just 1 mu of ground of experimental group evenly spills in the ground after also 15 gram inorganic selenium sodium selenites and earth repeatedly will being stirred except that using sufficient base manure;
Cowpea was sowed on May 10th, 2007, planted 1000 strain/mus, 75 days breeding times, control group is also grown seedlings in the greenhouse, just soak seed and spray the bud seedling without the mineral salt sodium selenite solution, the land for growing field crops uses sufficient outside the base manure, does not shed in the ground and the mixed uniformly 15 gram inorganic selenium sodium selenites of earth.
Results: experimental group: 890.70kg, organic selenium content: 462.241mg/kg (ppm)
Control group: 925.11kg, organic selenium content: 0.450mg/kg (ppm).
Described plant can also be vegetables such as tomato, cucumber, just the organic selenium content difference.Radish, cowpea content are the highest, influence the output minimum, and the bean sprouts production cycle is the shortest, and cost is minimum.
Obviously, technological process of the present invention, and application number/patent No. is 200710028176.8 " using plant to prepare the working system of biologic state selenium " and the patent No. as ZL97107038.5 " technology of preparing of nanometer selenium " relatively, its technological process is simple, less investment, and cheap, high effect nontoxic, edible safety and easy to use are easy to penetration and promotion.
In addition, this product that inorganic selenium is converted into organic selenium by the growth of plant, can be widely used in fields such as medicine, food, beverage, feed, mix (people that is grown up mended the selenium amount in one day) with 0.081566g organic selenium radish as 5g salt, become organic selenium salt, its high effect nontoxic, edible safety, cheap (maintaining an equal level) with " salt compounded of iodine ", easy to use, can prevent and treat more than 70 kind of regional characters selenium deficiency disease, still do not have sale so far in present market.
Claims (4)
1. the production method of an organic selenium is characterized in that: it soaks the seed of plant with the mineral salt sodium selenite solution after again through germination, plantation, the growth by plant is converted into organic selenium with inorganic selenium, just becomes organic selenium product through handling then;
The production stage of described organic selenium is as follows:
(1), to get Radish seed or cowpea seed 50g and concentration be 80～150mg/kg mineral salt sodium selenite solutions, in 1: the 3-6 ratio was soaked 18 hours-24 hours;
(2), Radish seed that will soak or cowpea seed are put into 26 ℃～30 ℃ greenhouse germination, per 8 hours mineral salt sodium selenite solutions with 100mg/kg of duration of germination spray 1 time in the greenhouse, totally 9 times, use the running water spray instead 1 time in per afterwards 8 hours, still spray 9 times, and cultivate into seedling;
(3), with the sprigging of germinateing in the greenhouse in green house or big field, green house or land for growing field crops must use sufficient base manure in advance, and the mineral salt sodium selenites and the earth of 15 grams evenly spilt in the ground after repeatedly stirring, according to conventional vegetable cultivation rules plantation, ripe results contain the plant of organic selenium, through handling, be organic selenium product.
2. the production method of a kind of organic selenium according to claim 1 is characterized in that: the concrete production stage of described organic selenium is as follows:
(1), get Radish seed 50g/ part and concentration is 80～150mg/kg mineral salt sodium selenite solutions, mix in the thermostatic chamber that is placed on 28 ℃ in 1: 4 ratio and soaked 24 hours;
(2), the Radish seed that will soak is put into 26 ℃～30 ℃ greenhouse germination, per 8 hours mineral salt sodium selenite solutions with 100mg/kg of duration of germination spray 1 time in the greenhouse, totally 9 times, use the running water spray instead 1 time in per afterwards 8 hours, still spray 9 times, and cultivate into seedling;
(3), with the seedling culture transferring in green house or big field, green house or land for growing field crops must use sufficient base manure in advance, and the mineral salt sodium selenites and the earth of 15 grams evenly spilt in the ground after repeatedly stirring, cultivate according to the vegetables rules, ripe back gathers in the crops together with organic selenium radish and organic selenium radish ornamental tassels.
3. the production method of a kind of organic selenium according to claim 1 is characterized in that: the described plant that contains organic selenium mixes in proportion with salt and can be made into organic selenium salt.
4. the production method of a kind of organic selenium according to claim 1, it is characterized in that: the described plant that contains organic selenium can be made into organic selenium medicine, organic selenium food, organic selenium beverage, organic selenium feed, organic selenium condiment.
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| CN2008100177595A CN101248737B (en) | 2008-03-19 | 2008-03-19 | Method for producing organic selenium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2461180C1 (en) * | 2011-03-29 | 2012-09-20 | Государственное образовательное учреждение высшего профессионального образования Читинский государственный университет (ЧитГУ) | Method of increasing adaptive potential of vegetables |
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| CN105360757A (en) * | 2014-08-14 | 2016-03-02 | 恩施盛硒生物工程有限公司 | Selenium-rich fruit and vegetable tablets and preparing method thereof |
| CN104663217A (en) * | 2015-02-27 | 2015-06-03 | 北京农学院 | Selenium-rich cultivation method for cucumbers |
| CN107141026A (en) * | 2017-05-12 | 2017-09-08 | 华中农业大学 | A kind of nutrient solution for improving radish Se content and the method that radish Se content is improved using it |
| CN107223944A (en) * | 2017-06-27 | 2017-10-03 | 刘海峰 | A kind of hotpot condiment rich in Organic Selenium |
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| CN109673420A (en) * | 2017-08-26 | 2019-04-26 | 黔西南州林晨黔一农业发展有限公司 | A kind of selenium-rich asparagus implantation methods |
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